Index: Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Data/MacroStabilityInwardsInput.cs
===================================================================
diff -u -r5007be256ef2923a6aecbc2639b1e80f38f45539 -r9743fa24b1c44e916c046064a361f4901f993f92
--- Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Data/MacroStabilityInwardsInput.cs	(.../MacroStabilityInwardsInput.cs)	(revision 5007be256ef2923a6aecbc2639b1e80f38f45539)
+++ Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Data/MacroStabilityInwardsInput.cs	(.../MacroStabilityInwardsInput.cs)	(revision 9743fa24b1c44e916c046064a361f4901f993f92)
@@ -105,7 +105,7 @@
             penetrationLength = new RoundedDouble(2, double.NaN);
 
             GridDeterminationType = MacroStabilityInwardsGridDeterminationType.Automatic;
-            TangentLineDetermination = MacroStabilityInwardsTangentLineDetermination.LayerSeparated;
+            TangentLineDeterminationType = MacroStabilityInwardsTangentLineDeterminationType.LayerSeparated;
 
             tangentLineZTop = new RoundedDouble(2, double.NaN);
             tangentLineZBottom = new RoundedDouble(2, double.NaN);
@@ -285,7 +285,7 @@
         /// <summary>
         /// Gets or sets the tangent line determination type.
         /// </summary>
-        public MacroStabilityInwardsTangentLineDetermination TangentLineDetermination { get; set; }
+        public MacroStabilityInwardsTangentLineDeterminationType TangentLineDeterminationType { get; set; }
 
         /// <summary>
         /// Gets or sets the tangent line z top.
Fisheye: Tag 9743fa24b1c44e916c046064a361f4901f993f92 refers to a dead (removed) revision in file `Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Data/MacroStabilityInwardsTangentLineDetermination.cs'.
Fisheye: No comparison available.  Pass `N' to diff?
Index: Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Data/MacroStabilityInwardsTangentLineDeterminationType.cs
===================================================================
diff -u
--- Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Data/MacroStabilityInwardsTangentLineDeterminationType.cs	(revision 0)
+++ Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Data/MacroStabilityInwardsTangentLineDeterminationType.cs	(revision 9743fa24b1c44e916c046064a361f4901f993f92)
@@ -0,0 +1,38 @@
+// Copyright (C) Stichting Deltares 2017. All rights reserved.
+//
+// This file is part of Ringtoets.
+//
+// Ringtoets is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+// 
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+//
+// All names, logos, and references to "Deltares" are registered trademarks of
+// Stichting Deltares and remain full property of Stichting Deltares at all times.
+// All rights reserved.
+
+using Core.Common.Utils.Attributes;
+using Ringtoets.MacroStabilityInwards.Data.Properties;
+
+namespace Ringtoets.MacroStabilityInwards.Data
+{
+    /// <summary>
+    /// The tangent line determination types.
+    /// </summary>
+    public enum MacroStabilityInwardsTangentLineDeterminationType
+    {
+        [ResourcesDisplayName(typeof(Resources), nameof(Resources.Specified_DisplayName))]
+        Specified = 1,
+
+        [ResourcesDisplayName(typeof(Resources), nameof(Resources.LayerSeparated_DisplayName))]
+        LayerSeparated = 2
+    }
+}
\ No newline at end of file
Index: Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Data/Ringtoets.MacroStabilityInwards.Data.csproj
===================================================================
diff -u -r5007be256ef2923a6aecbc2639b1e80f38f45539 -r9743fa24b1c44e916c046064a361f4901f993f92
--- Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Data/Ringtoets.MacroStabilityInwards.Data.csproj	(.../Ringtoets.MacroStabilityInwards.Data.csproj)	(revision 5007be256ef2923a6aecbc2639b1e80f38f45539)
+++ Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Data/Ringtoets.MacroStabilityInwards.Data.csproj	(.../Ringtoets.MacroStabilityInwards.Data.csproj)	(revision 9743fa24b1c44e916c046064a361f4901f993f92)
@@ -54,7 +54,7 @@
     <Compile Include="MacroStabilityInwardsSlidingCircle.cs" />
     <Compile Include="MacroStabilityInwardsSlidingCurve.cs" />
     <Compile Include="MacroStabilityInwardsSlipPlaneUpliftVan.cs" />
-    <Compile Include="MacroStabilityInwardsTangentLineDetermination.cs" />
+    <Compile Include="MacroStabilityInwardsTangentLineDeterminationType.cs" />
     <Compile Include="MacroStabilityInwardsZoningBoundariesDetermination.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="Properties\Resources.Designer.cs">
Index: Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Forms/Properties/Resources.Designer.cs
===================================================================
diff -u -r5007be256ef2923a6aecbc2639b1e80f38f45539 -r9743fa24b1c44e916c046064a361f4901f993f92
--- Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Forms/Properties/Resources.Designer.cs	(.../Resources.Designer.cs)	(revision 5007be256ef2923a6aecbc2639b1e80f38f45539)
+++ Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Forms/Properties/Resources.Designer.cs	(.../Resources.Designer.cs)	(revision 9743fa24b1c44e916c046064a361f4901f993f92)
@@ -1175,18 +1175,18 @@
         /// <summary>
         ///   Looks up a localized string similar to Bepaling raaklijnen op basis van grondlaagscheidingen of handmatig?.
         /// </summary>
-        public static string TangentLineDetermination_Description {
+        public static string TangentLineDeterminationType_Description {
             get {
-                return ResourceManager.GetString("TangentLineDetermination_Description", resourceCulture);
+                return ResourceManager.GetString("TangentLineDeterminationType_Description", resourceCulture);
             }
         }
         
         /// <summary>
         ///   Looks up a localized string similar to Bepaling tangentlijnen.
         /// </summary>
-        public static string TangentLineDetermination_DisplayName {
+        public static string TangentLineDeterminationType_DisplayName {
             get {
-                return ResourceManager.GetString("TangentLineDetermination_DisplayName", resourceCulture);
+                return ResourceManager.GetString("TangentLineDeterminationType_DisplayName", resourceCulture);
             }
         }
         
Index: Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Forms/Properties/Resources.resx
===================================================================
diff -u -r5007be256ef2923a6aecbc2639b1e80f38f45539 -r9743fa24b1c44e916c046064a361f4901f993f92
--- Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Forms/Properties/Resources.resx	(.../Resources.resx)	(revision 5007be256ef2923a6aecbc2639b1e80f38f45539)
+++ Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Forms/Properties/Resources.resx	(.../Resources.resx)	(revision 9743fa24b1c44e916c046064a361f4901f993f92)
@@ -448,10 +448,10 @@
   <data name="RightGrid_DisplayName" xml:space="preserve">
     <value>Rechter grid</value>
   </data>
-  <data name="TangentLineDetermination_Description" xml:space="preserve">
+  <data name="TangentLineDeterminationType_Description" xml:space="preserve">
     <value>Bepaling raaklijnen op basis van grondlaagscheidingen of handmatig?</value>
   </data>
-  <data name="TangentLineDetermination_DisplayName" xml:space="preserve">
+  <data name="TangentLineDeterminationType_DisplayName" xml:space="preserve">
     <value>Bepaling tangentlijnen</value>
   </data>
   <data name="TangentLineZBottom_Description" xml:space="preserve">
Index: Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Forms/PropertyClasses/MacroStabilityInwardsGridSettingsProperties.cs
===================================================================
diff -u -r5007be256ef2923a6aecbc2639b1e80f38f45539 -r9743fa24b1c44e916c046064a361f4901f993f92
--- Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Forms/PropertyClasses/MacroStabilityInwardsGridSettingsProperties.cs	(.../MacroStabilityInwardsGridSettingsProperties.cs)	(revision 5007be256ef2923a6aecbc2639b1e80f38f45539)
+++ Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Forms/PropertyClasses/MacroStabilityInwardsGridSettingsProperties.cs	(.../MacroStabilityInwardsGridSettingsProperties.cs)	(revision 9743fa24b1c44e916c046064a361f4901f993f92)
@@ -41,7 +41,7 @@
     {
         private const int moveGridPropertyIndex = 1;
         private const int gridDeterminationTypePropertyIndex = 2;
-        private const int tangentLineDeterminationPropertyIndex = 3;
+        private const int tangentLineDeterminationTypePropertyIndex = 3;
         private const int tangentLineZTopPropertyIndex = 4;
         private const int tangentLineZBottomPropertyIndex = 5;
         private const int leftGridPropertyIndex = 6;
@@ -102,21 +102,21 @@
             }
         }
 
-        [PropertyOrder(tangentLineDeterminationPropertyIndex)]
+        [PropertyOrder(tangentLineDeterminationTypePropertyIndex)]
         [DynamicReadOnly]
         [ResourcesCategory(typeof(Resources), nameof(Resources.GridSettings_DisplayName))]
-        [ResourcesDisplayName(typeof(Resources), nameof(Resources.TangentLineDetermination_DisplayName))]
-        [ResourcesDescription(typeof(Resources), nameof(Resources.TangentLineDetermination_Description))]
+        [ResourcesDisplayName(typeof(Resources), nameof(Resources.TangentLineDeterminationType_DisplayName))]
+        [ResourcesDescription(typeof(Resources), nameof(Resources.TangentLineDeterminationType_Description))]
         [TypeConverter(typeof(EnumTypeConverter))]
-        public MacroStabilityInwardsTangentLineDetermination TangentLineDetermination
+        public MacroStabilityInwardsTangentLineDeterminationType TangentLineDeterminationType
         {
             get
             {
-                return data.TangentLineDetermination;
+                return data.TangentLineDeterminationType;
             }
             set
             {
-                PropertyChangeHelper.ChangePropertyAndNotify(() => data.TangentLineDetermination = value, propertyChangeHandler);
+                PropertyChangeHelper.ChangePropertyAndNotify(() => data.TangentLineDeterminationType = value, propertyChangeHandler);
             }
         }
 
Index: Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Service/MacroStabilityInwardsCalculationService.cs
===================================================================
diff -u -r5007be256ef2923a6aecbc2639b1e80f38f45539 -r9743fa24b1c44e916c046064a361f4901f993f92
--- Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Service/MacroStabilityInwardsCalculationService.cs	(.../MacroStabilityInwardsCalculationService.cs)	(revision 5007be256ef2923a6aecbc2639b1e80f38f45539)
+++ Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Service/MacroStabilityInwardsCalculationService.cs	(.../MacroStabilityInwardsCalculationService.cs)	(revision 9743fa24b1c44e916c046064a361f4901f993f92)
@@ -209,7 +209,7 @@
                     GridAutomaticDetermined = inputParameters.GridDeterminationType == MacroStabilityInwardsGridDeterminationType.Automatic,
                     LeftGrid = inputParameters.LeftGrid,
                     RightGrid = inputParameters.RightGrid,
-                    TangentLineAutomaticAtBoundaries = inputParameters.TangentLineDetermination == MacroStabilityInwardsTangentLineDetermination.LayerSeparated,
+                    TangentLineAutomaticAtBoundaries = inputParameters.TangentLineDeterminationType == MacroStabilityInwardsTangentLineDeterminationType.LayerSeparated,
                     TangentLineZTop = inputParameters.TangentLineZTop,
                     TangentLineZBottom = inputParameters.TangentLineZBottom,
                     CreateZones = inputParameters.CreateZones,
Index: Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Data.Test/MacroStabilityInwardsInputTest.cs
===================================================================
diff -u -r5007be256ef2923a6aecbc2639b1e80f38f45539 -r9743fa24b1c44e916c046064a361f4901f993f92
--- Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Data.Test/MacroStabilityInwardsInputTest.cs	(.../MacroStabilityInwardsInputTest.cs)	(revision 5007be256ef2923a6aecbc2639b1e80f38f45539)
+++ Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Data.Test/MacroStabilityInwardsInputTest.cs	(.../MacroStabilityInwardsInputTest.cs)	(revision 9743fa24b1c44e916c046064a361f4901f993f92)
@@ -127,7 +127,7 @@
             Assert.AreEqual(2, inputParameters.PenetrationLength.NumberOfDecimalPlaces);
 
             Assert.AreEqual(MacroStabilityInwardsGridDeterminationType.Automatic, inputParameters.GridDeterminationType);
-            Assert.AreEqual(MacroStabilityInwardsTangentLineDetermination.LayerSeparated, inputParameters.TangentLineDetermination);
+            Assert.AreEqual(MacroStabilityInwardsTangentLineDeterminationType.LayerSeparated, inputParameters.TangentLineDeterminationType);
 
             Assert.IsNaN(inputParameters.TangentLineZTop);
             Assert.AreEqual(2, inputParameters.TangentLineZTop.NumberOfDecimalPlaces);
Fisheye: Tag 9743fa24b1c44e916c046064a361f4901f993f92 refers to a dead (removed) revision in file `Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Data.Test/MacroStabilityInwardsTangentLineDeterminationTest.cs'.
Fisheye: No comparison available.  Pass `N' to diff?
Index: Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Data.Test/MacroStabilityInwardsTangentLineDeterminationTypeTest.cs
===================================================================
diff -u
--- Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Data.Test/MacroStabilityInwardsTangentLineDeterminationTypeTest.cs	(revision 0)
+++ Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Data.Test/MacroStabilityInwardsTangentLineDeterminationTypeTest.cs	(revision 9743fa24b1c44e916c046064a361f4901f993f92)
@@ -0,0 +1,63 @@
+// Copyright (C) Stichting Deltares 2017. All rights reserved.
+//
+// This file is part of Ringtoets.
+//
+// Ringtoets is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+// 
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+//
+// All names, logos, and references to "Deltares" are registered trademarks of
+// Stichting Deltares and remain full property of Stichting Deltares at all times.
+// All rights reserved.
+
+using System.Collections.Generic;
+using Core.Common.TestUtil;
+using NUnit.Framework;
+
+namespace Ringtoets.MacroStabilityInwards.Data.Test
+{
+    [TestFixture]
+    public class MacroStabilityInwardsTangentLineDeterminationTypeTest : EnumTestFixture<MacroStabilityInwardsTangentLineDeterminationType>
+    {
+        protected override IDictionary<MacroStabilityInwardsTangentLineDeterminationType, string> ExpectedDisplayNameForEnumValues
+        {
+            get
+            {
+                return new Dictionary<MacroStabilityInwardsTangentLineDeterminationType, string>
+                {
+                    {
+                        MacroStabilityInwardsTangentLineDeterminationType.Specified, "Gespecificeerd"
+                    },
+                    {
+                        MacroStabilityInwardsTangentLineDeterminationType.LayerSeparated, "Op laagscheiding"
+                    }
+                };
+            }
+        }
+
+        protected override IDictionary<MacroStabilityInwardsTangentLineDeterminationType, byte> ExpectedValueForEnumValues
+        {
+            get
+            {
+                return new Dictionary<MacroStabilityInwardsTangentLineDeterminationType, byte>
+                {
+                    {
+                        MacroStabilityInwardsTangentLineDeterminationType.Specified, 1
+                    },
+                    {
+                        MacroStabilityInwardsTangentLineDeterminationType.LayerSeparated, 2
+                    }
+                };
+            }
+        }
+    }
+}
\ No newline at end of file
Index: Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Data.Test/Ringtoets.MacroStabilityInwards.Data.Test.csproj
===================================================================
diff -u -r5007be256ef2923a6aecbc2639b1e80f38f45539 -r9743fa24b1c44e916c046064a361f4901f993f92
--- Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Data.Test/Ringtoets.MacroStabilityInwards.Data.Test.csproj	(.../Ringtoets.MacroStabilityInwards.Data.Test.csproj)	(revision 5007be256ef2923a6aecbc2639b1e80f38f45539)
+++ Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Data.Test/Ringtoets.MacroStabilityInwards.Data.Test.csproj	(.../Ringtoets.MacroStabilityInwards.Data.Test.csproj)	(revision 9743fa24b1c44e916c046064a361f4901f993f92)
@@ -66,7 +66,7 @@
     <Compile Include="MacroStabilityInwardsSlidingCircleTest.cs" />
     <Compile Include="MacroStabilityInwardsSlidingCurveTest.cs" />
     <Compile Include="MacroStabilityInwardsSlipPlaneUpliftVanTest.cs" />
-    <Compile Include="MacroStabilityInwardsTangentLineDeterminationTest.cs" />
+    <Compile Include="MacroStabilityInwardsTangentLineDeterminationTypeTest.cs" />
     <Compile Include="MacroStabilityInwardsFailureMechanismSection2aAssessmentResultExtensionsTest.cs" />
     <Compile Include="MacroStabilityInwardsFailureMechanismSectionResultTest.cs" />
     <Compile Include="MacroStabilityInwardsFailureMechanismTest.cs" />
Index: Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Forms.Test/PropertyClasses/MacroStabilityInwardsGridSettingsPropertiesTest.cs
===================================================================
diff -u -r5007be256ef2923a6aecbc2639b1e80f38f45539 -r9743fa24b1c44e916c046064a361f4901f993f92
--- Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Forms.Test/PropertyClasses/MacroStabilityInwardsGridSettingsPropertiesTest.cs	(.../MacroStabilityInwardsGridSettingsPropertiesTest.cs)	(revision 5007be256ef2923a6aecbc2639b1e80f38f45539)
+++ Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Forms.Test/PropertyClasses/MacroStabilityInwardsGridSettingsPropertiesTest.cs	(.../MacroStabilityInwardsGridSettingsPropertiesTest.cs)	(revision 9743fa24b1c44e916c046064a361f4901f993f92)
@@ -42,7 +42,7 @@
     {
         private const int expectedMoveGridPropertyIndex = 0;
         private const int expectedGridDeterminationTypePropertyIndex = 1;
-        private const int expectedTangentLineDeterminationPropertyIndex = 2;
+        private const int expectedTangentLineDeterminationTypePropertyIndex = 2;
         private const int expectedTangentLineZTopPropertyIndex = 3;
         private const int expectedTangentLineZBottomPropertyIndex = 4;
         private const int expectedLeftGridPropertyIndex = 5;
@@ -138,10 +138,10 @@
                 "Bepaling grid",
                 "Rekengrid automatisch bepalen of handmatig invoeren?");
 
-            PropertyDescriptor tangentLineDeterminationProperty = dynamicProperties[expectedTangentLineDeterminationPropertyIndex];
-            TestHelper.AssertTypeConverter<MacroStabilityInwardsGridSettingsProperties, EnumTypeConverter>(nameof(properties.TangentLineDetermination));
+            PropertyDescriptor tangentLineDeterminationTypeProperty = dynamicProperties[expectedTangentLineDeterminationTypePropertyIndex];
+            TestHelper.AssertTypeConverter<MacroStabilityInwardsGridSettingsProperties, EnumTypeConverter>(nameof(properties.TangentLineDeterminationType));
             PropertiesTestHelper.AssertRequiredPropertyDescriptorProperties(
-                tangentLineDeterminationProperty,
+                tangentLineDeterminationTypeProperty,
                 calculationGridsCategory,
                 "Bepaling tangentlijnen",
                 "Bepaling raaklijnen op basis van grondlaagscheidingen of handmatig?",
@@ -206,7 +206,7 @@
             // Assert
             Assert.AreEqual(input.MoveGrid, properties.MoveGrid);
             Assert.AreEqual(input.GridDeterminationType, properties.GridDeterminationType);
-            Assert.AreEqual(input.TangentLineDetermination, properties.TangentLineDetermination);
+            Assert.AreEqual(input.TangentLineDeterminationType, properties.TangentLineDeterminationType);
             Assert.AreEqual(input.TangentLineZTop, properties.TangentLineZTop);
             Assert.AreEqual(input.TangentLineZBottom, properties.TangentLineZBottom);
 
@@ -231,21 +231,21 @@
             var random = new Random();
             bool moveGrid = random.NextBoolean();
             var gridDeterminationType = random.NextEnumValue<MacroStabilityInwardsGridDeterminationType>();
-            var tangentLineDetermination = random.NextEnumValue<MacroStabilityInwardsTangentLineDetermination>();
+            var tangentLineDeterminationType = random.NextEnumValue<MacroStabilityInwardsTangentLineDeterminationType>();
             double tangentLineZTop = random.Next();
             double tangentLineZBottom = random.Next();
 
             // When
             properties.MoveGrid = moveGrid;
             properties.GridDeterminationType = gridDeterminationType;
-            properties.TangentLineDetermination = tangentLineDetermination;
+            properties.TangentLineDeterminationType = tangentLineDeterminationType;
             properties.TangentLineZTop = (RoundedDouble) tangentLineZTop;
             properties.TangentLineZBottom = (RoundedDouble) tangentLineZBottom;
 
             // Then
             Assert.AreEqual(moveGrid, input.MoveGrid);
             Assert.AreEqual(gridDeterminationType, input.GridDeterminationType);
-            Assert.AreEqual(tangentLineDetermination, input.TangentLineDetermination);
+            Assert.AreEqual(tangentLineDeterminationType, input.TangentLineDeterminationType);
             Assert.AreEqual(tangentLineZTop, input.TangentLineZTop, input.TangentLineZTop.GetAccuracy());
             Assert.AreEqual(tangentLineZBottom, input.TangentLineZBottom, input.TangentLineZBottom.GetAccuracy());
         }
@@ -271,13 +271,13 @@
         }
 
         [Test]
-        public void TangentLineDetermination_SetValidValue_SetsValueAndUpdatesObservers()
+        public void TangentLineDeterminationType_SetValidValue_SetsValueAndUpdatesObservers()
         {
             // Setup
             var calculation = new MacroStabilityInwardsCalculationScenario();
 
             // Call & Assert
-            SetPropertyAndVerifyNotifcationsForCalculation(properties => properties.TangentLineDetermination = MacroStabilityInwardsTangentLineDetermination.Specified, calculation);
+            SetPropertyAndVerifyNotifcationsForCalculation(properties => properties.TangentLineDeterminationType = MacroStabilityInwardsTangentLineDeterminationType.Specified, calculation);
         }
 
         [Test]
Index: Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Service.Test/MacroStabilityInwardsCalculationServiceTest.cs
===================================================================
diff -u -r5007be256ef2923a6aecbc2639b1e80f38f45539 -r9743fa24b1c44e916c046064a361f4901f993f92
--- Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Service.Test/MacroStabilityInwardsCalculationServiceTest.cs	(.../MacroStabilityInwardsCalculationServiceTest.cs)	(revision 5007be256ef2923a6aecbc2639b1e80f38f45539)
+++ Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Service.Test/MacroStabilityInwardsCalculationServiceTest.cs	(.../MacroStabilityInwardsCalculationServiceTest.cs)	(revision 9743fa24b1c44e916c046064a361f4901f993f92)
@@ -375,7 +375,7 @@
             Assert.AreEqual(originalInput.GridDeterminationType == MacroStabilityInwardsGridDeterminationType.Automatic, actualInput.GridAutomaticDetermined);
             Assert.AreEqual(originalInput.LeftGrid, actualInput.LeftGrid);
             Assert.AreEqual(originalInput.RightGrid, actualInput.RightGrid);
-            Assert.AreEqual(originalInput.TangentLineDetermination == MacroStabilityInwardsTangentLineDetermination.LayerSeparated, actualInput.TangentLineAutomaticAtBoundaries);
+            Assert.AreEqual(originalInput.TangentLineDeterminationType == MacroStabilityInwardsTangentLineDeterminationType.LayerSeparated, actualInput.TangentLineAutomaticAtBoundaries);
             Assert.AreEqual(originalInput.TangentLineZTop, actualInput.TangentLineZTop);
             Assert.AreEqual(originalInput.TangentLineZBottom, actualInput.TangentLineZBottom);
             Assert.AreEqual(originalInput.CreateZones, actualInput.CreateZones);